A strange investigation doesn’t erase the regrets of a grieving woman cop. Every four years, the past catches up with her. Every four years this woman is very afraid. Her fear is such that she feels it could kill her because in her dreams reality begins.

Mathieu, a piano virtuoso, goes home to help his brother Paul to take care of their sick mother. Paul is into reenacting old battles, dressing up and getting into character, even dueling if necessary. Mathieu gets involved in this world and play becomes real.

High school life chronicles set before, during and after the events of May 68.